<!DOCTYPE html>
<html lang="en">

<head>
  <meta charset="UTF-8">
  <meta http-equiv="X-UA-Compatible" content="IE=edge">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>Document</title>
  <style>
    * {
      margin: 0;
      padding: 0;
      box-sizing: border-box;
    }

    .view {
      height: 100vh;
      overflow: hidden;
      display: flex;
      flex-direction: column;
    }

    header {
      height: 50px;
      background-color: aqua;
    }

    .main {
      flex: 1;
      display: flex;
    }

    .left {
      width: 200px;
      background-color: blueviolet;

    }

    li {
      height: 40px;
      display: flex;
      align-items: center;
      justify-content: center;
    }

    a {
      text-decoration: none;
      color: #fff;
    }

    .right {
      flex: 1;
      background-color: salmon;
    }

    .right iframe {
      width: 100%;
      height: 100%;
    }
  </style>
</head>

<body>
  <div class="view">
    <header></header>
    <div class="main">
      <ul class="left">
        <li><a target="aabb" href="https://www.taobao.com/">淘宝</a></li>
        <li><a target="aabb" href="05-自己搭建的页面.html">自己的内部页面</a></li>

      </ul>
      <div class="right">
        <iframe name="aabb" src="" frameborder="0"></iframe>
      </div>
    </div>
  </div>

</body>

</html>